This question already has an answer here:
I have a
iMac (early 2009)
2,66 GHz Intel Core 2 Duo 4 GB 1067 MHz DDR3 640GB 7200-rpm Serial ATA hard drive
If I create a partition for the iTunes library and another one for the iPhoto library (they are pretty heavy), do you think this makes my Mac faster or not? And, if possible, can you shortly explain why?